11055100510561 has 4 divisors (see below), whose sum is σ = 11705400540612. Its totient is φ = 10404800480512.

The previous prime is 11055100510547. The next prime is 11055100510577. The reversal of 11055100510561 is 16501500155011.

11055100510561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6693184720161 + 4361915790400 = 2587119^2 + 2088520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11055100510561 is a prime.

It is a super-3 number, since 3×11055100510561³ (a number of 40 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11055100510511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325150015000 + ... + 325150015033.

It is an arithmetic number, because the mean of its divisors is an integer number (2926350135153).

Almost surely, 2^{11055100510561} is an apocalyptic number.

It is an amenable number.

11055100510561 is a deficient number, since it is larger than the sum of its proper divisors (650300030051).

11055100510561 is an equidigital number, since it uses as much as digits as its factorization.

11055100510561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650300030050.

The product of its (nonzero) digits is 3750, while the sum is 31.

Adding to 11055100510561 its reverse (16501500155011), we get a palindrome (27556600665572).

The spelling of 11055100510561 in words is "eleven trillion, fifty-five billion, one hundred million, five hundred ten thousand, five hundred sixty-one".